公开(公告)号：US06987723B2

公开(公告)日：2006-01-17

申请号：US11081556

申请日：2005-03-17

申请人： Isao Ichimura ,  Kiyoshi Osato ,  Jun Nakano ,  Shin Masuhara

发明人： Isao Ichimura ,  Kiyoshi Osato ,  Jun Nakano ,  Shin Masuhara

IPC分类号： G11B7/24

CPC分类号： G11B7/24 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/24079 ,  G11B7/24082

摘要： The present invention provides an optical recording medium and an optical disk device realizing prevention of crosswrite and uniformity of playback signals and capable of easily securing compatibility with a read only disk. It provides an optical recording medium on which light LB condensed by a lens (12, 14) having a numerical aperture of 0.85±0.1 and a wavelength of 405±5 nm is focused for recording or playback, having a substrate 1 formed with a groove 2 in its surface, an optical recording layer 3 formed on the substrate and having topography corresponding to the groove, and a light transmission type protection layer 4 formed on the optical recording layer; used when light for recording or playback is focused from the protection layer side to the optical recording layer; using as a recording area only the optical recording layer of one of a side far from the emitting side of the light for recording or playback, that is, a portion corresponding to a recessed portion of the topography, and a side close to it, that is, a portion corresponding to a projecting portion; having a track pitch of 0.32±0.01 μm; and having a depth D2 of a recessed portion with respect to a projecting portion in the range of 19 to 24 nm.

公开(公告)号：US20050163033A1

公开(公告)日：2005-07-28

申请号：US11081555

申请日：2005-03-17

申请人： Isao Ichimura ,  Kiyoshi Osato ,  Jun Nakano ,  Shin Masuhara

发明人： Isao Ichimura ,  Kiyoshi Osato ,  Jun Nakano ,  Shin Masuhara

IPC分类号： G11B7/007 ,  G11B7/24

CPC分类号： G11B7/24 ,  G11B7/007 ,  G11B7/00718 ,  G11B7/24079 ,  G11B7/24082

摘要： The present invention provides an optical recording medium and an optical disk device realizing prevention of crosswrite and uniformity of playback signals and capable of easily securing compatibility with a read only disk. It provides an optical recording medium on which light LB condensed by a lens (12, 14) having a numerical aperture of 0.85±0.1 and a wavelength of 405±5 nm is focused for recording or playback, having a substrate 1 formed with a groove 2 in its surface, an optical recording layer 3 formed on the substrate and having topography corresponding to the groove, and a light transmission type protection layer 4 formed on the optical recording layer; used when light for recording or playback is focused from the protection layer side to the optical recording layer; using as a recording area only the optical recording layer of one of a side far from the emitting side of the light for recording or playback, that is, a portion corresponding to a recessed portion of the topography, and a side close to it, that is, a portion corresponding to a projecting portion; having a track pitch of 0.32±0.01 μm; and having a depth D2 of a recessed portion with respect to a projecting portion in the range of 19 to 24 nm.

摘要翻译： 本发明提供了一种光学记录介质和光盘装置，其实现了防止重放信号的横向和均匀性并且能够容易地确保与只读盘的兼容性。 它提供了一种光学记录介质，其上聚焦有数字孔径为0.85±0.1和波长为405±5nm的透镜（12,14）的光LB用于记录或重放，其具有形成有凹槽 2，形成在基板上并且具有与凹槽对应的形貌的光学记录层3和形成在光学记录层上的透光型保护层4; 用于记录或重放的光从保护层侧聚焦到光学记录层; 仅使用远离用于记录或重放的光的发射侧的一侧的光记录层，即与形貌的凹陷部相对应的部分和靠近它的一侧的光记录层， 是对应于突出部分的部分; 轨道间距为0.32±0.01 mum; 相对于突出部的凹部的深度D 2在19〜24nm的范围内。

公开(公告)号：US20050036423A1

公开(公告)日：2005-02-17

申请号：US10890176

申请日：2004-07-14

申请人： Isao Ichimura ,  Tsutomu Maruyama ,  Yuichi Sabi ,  Kiyoshi Osato

发明人： Isao Ichimura ,  Tsutomu Maruyama ,  Yuichi Sabi ,  Kiyoshi Osato

IPC分类号： G11B7/0045 ,  G11B7/125 ,  G11B7/135 ,  G11B7/00 ,  G11B5/09

CPC分类号： G11B7/1369 ,  G11B7/00456 ,  G11B7/13927

摘要： An optimum performance is achieved relative to write-once type optical recording mediums on which information is recorded by means of a blue-violet semiconductor laser. An optical disc recording/reproduction apparatus 10 comprises an LD control section 17 adapted to control the irradiation power of a laser when writing data. If the cycle of the channel clock is T, when forming a recording mark having a length of n×T (n being an integer not smaller than 2), a pulse beam is irradiated onto the write-once type information recording medium for n/2 times (decimals, if any, being to be rounded down). When forming a recording mark having a length of not smaller than 6T and even number times of T, a pulse beam is irradiated for n/2 times with all the intermediate pulse beams synchronized with the phase of the channel clock except the leading pulse beam and the tail end pulse beam. When forming a recording mark having a length of not smaller than 6T and odd number times of T, a pulse beam is irradiated with all the intermediate pulse beams delayed from the phase of the channel clock by T/2 except the leading pulse beam and the tail end pulse beam.

摘要翻译： 相对于其上通过蓝紫色半导体激光器记录信息的一次写入型光学记录介质，实现了最佳性能。 光盘记录/再现装置10包括LD控制部分17，其适于在写入数据时控制激光器的照射功率。 如果通道时钟的周期为T，则当形成长度为n×T（n为2以上的整数）的记录标记时，将脉冲光束照射到一次写入型信息记录介质上n / 2次 （小数，如果有的话）被四舍五入）。 当形成长度不小于6T且偶数次T的记录标记时，除了前导脉冲波束之外，与除了通道时钟的相位同步的所有中间脉冲波束照射脉冲束n / 2次， 尾端脉冲光束。 当形成长度不小于6T且奇数倍的记录标记时，除了前导脉冲波束之外，从通道时钟的相位延迟的所有中间脉冲波束照射脉冲光束T / 2， 尾端脉冲束。

公开(公告)号：US06992966B2

公开(公告)日：2006-01-31

申请号：US10166601

申请日：2002-06-12

申请人： Kenji Yamamoto ,  Kiyoshi Osato ,  Yoshiaki Kato

发明人： Kenji Yamamoto ,  Kiyoshi Osato ,  Yoshiaki Kato

IPC分类号： G11B7/00

CPC分类号： G11B7/13927 ,  G02F1/133553 ,  G02F2203/50 ,  G11B7/0948 ,  G11B7/0956 ,  G11B7/1369 ,  G11B2007/0013

摘要： An optical pickup device including a light source, an objective lens for converging a light beam emitted from the light source at a signal recording surface of an optical recording medium and irradiating the signal recording surface of the optical recording medium with the light beam, and a liquid crystal device, disposed in a light path between the light source and the objective lens, for giving a predetermined phase distribution to transmission light that passes through the liquid crystal device, with both front and back surfaces of the liquid crystal device being flat surfaces. In the optical pickup device, the liquid crystal device is constructed by sandwiching a liquid crystal molecule layer by a pair of transparent substrate. In addition, a liquid-crystal-molecule-layer-sandwiching-side surface of each transparent substrate has a shape that is formed when a thickness distribution of the liquid crystal molecule layer is similar to a phase distribution that is produced when a predetermined aberration occurs.

摘要翻译： 一种光拾取装置，包括光源，用于将从光源发射的光束会聚在光学记录介质的信号记录表面处并用光束照射光学记录介质的信号记录表面的物镜，以及 液晶装置，其设置在光源和物镜之间的光路中，用于对通过液晶装置的透射光给出预定的相位分布，其中液晶装置的前表面和后表面均为平坦表面。 在光拾取装置中，通过一对透明基板夹着液晶分子层来构成液晶装置。 此外，每个透明基板的液晶分子层夹持侧表面具有当液晶分子层的厚度分布类似于当发生预定的像差时产生的相位分布形成的形状 。

公开(公告)号：US20060083151A1

公开(公告)日：2006-04-20

申请号：US10540771

申请日：2004-01-30

申请人： Toshiro Kinoshita ,  Akihiko Kobayashi ,  Noboru Sasaki ,  Makoto Arisawa ,  Mamoru Sekiguchi ,  Hiroshi Hiroshi ,  Yoshimori Yamasaki ,  Kiyoshi Osato ,  Tamotsu Yamagami ,  Hidetoshi Watanabe

发明人： Toshiro Kinoshita ,  Akihiko Kobayashi ,  Noboru Sasaki ,  Makoto Arisawa ,  Mamoru Sekiguchi ,  Hiroshi Hiroshi ,  Yoshimori Yamasaki ,  Kiyoshi Osato ,  Tamotsu Yamagami ,  Hidetoshi Watanabe

IPC分类号： G11B7/00

CPC分类号： G11B7/24094 ,  B32B37/12 ,  B32B38/06 ,  B32B38/145 ,  B32B2307/7163 ,  B32B2429/02

摘要： An optical disk (10) of the present invention comprises a substrate (11) included a biodegradable resin or polyolefin resin, a recording layer (13) provided on at least one side of the substrate (11), and a printing layer (15) provided on the other side of substrate (11), wherein recording layer (13) and printing layer (15) have a base material layer (recording layer base material, printing base material (21)) included a non-hydrophilic film. This type of optical disk (10) has performance equal to that of conventional optical disks, has a minimal effect on the environment during disposal and is able to suppress warping of the substrate. In addition, a manufacturing method of an optical disk of the present invention comprises a recording layer sheet fabrication step in which a recording layer sheet is fabricated by forming tracks on a recording layer base material, a printing sheet fabrication step in which a printing sheet is fabricated by carrying out printing on a printing base material, and respective lamination steps in which the substrate sheet, recording layer sheet and printing sheet are laminated.

摘要翻译： 本发明的光盘（10）包括具有生物降解性树脂或聚烯烃树脂的基板（11），设置在基板（11）的至少一侧的记录层（13）和印刷层（15） 设置在基板（11）的另一侧，其中记录层（13）和印刷层（15）具有包含非亲水膜的基材层（记录层基材，印刷基材（21））。 这种类型的光盘（10）具有与常规光盘相同的性能，对处理过程中的环境影响最小，并且能够抑制基板翘曲。 此外，本发明的光盘的制造方法包括记录层片制造工序，其中通过在记录层基材上形成轨迹来制造记录层片，印刷片制造步骤，其中印刷片是 通过在印刷基材上进行印刷而制造，以及各层压步骤，其中层压基材片，记录层片和印刷片。

公开(公告)号：US06594204B1

公开(公告)日：2003-07-15

申请号：US09532177

申请日：2000-03-20

申请人： Kenji Yamamoto ,  Fumisada Maeda ,  Kiyoshi Osato

发明人： Kenji Yamamoto ,  Fumisada Maeda ,  Kiyoshi Osato

IPC分类号： G11B700

CPC分类号： G11B7/22 ,  B29C45/26 ,  G02B7/02 ,  G11B7/1374 ,  G11B2007/13727

摘要： A lens holder which is able to secure plural lenses in an adjustment-free fashion and to achieve relative positioning between the lenses to high precision. To this end, a first reference surface for the optical axis direction 4a1 and a second reference surface for the optical axis direction 4b1 of a second mounting portion 4b are formed towards the object point side to serve as a reference surface for determining the separation along the optical axis between the first and second lenses 2, 3. The first reference surface for the optical axis direction 4a1 and the second reference surface for the optical axis direction 4b1 also operate for controlling the tilt of the lenses 2, 3.

摘要翻译： 一种能够以无调节的方式固定多个透镜并且以高精度实现透镜之间的相对定位的透镜保持器。 为此，朝向物点侧形成光轴方向4a1的第一参考面和第二安装部4b的光轴方向4b1的第二基准面，作为用于确定沿着 第一和第二透镜2,3之间的光轴。光轴方向4a1的第一参考表面和光轴方向4b1的第二参考表面也用于控制透镜2,3的倾斜。

公开(公告)号：US06473542B1

公开(公告)日：2002-10-29

申请号：US09398262

申请日：1999-09-17

申请人： Masahiro Yamada ,  Kiyoshi Osato

发明人： Masahiro Yamada ,  Kiyoshi Osato

IPC分类号： G02B642

CPC分类号： G02F1/0508 ,  G02B2006/1204 ,  G02F1/2955 ,  G02F1/31 ,  G02F2001/311 ,  G02F2201/16 ,  G02F2202/07

摘要： Disclosed herein is an optical switch including: a dielectric substrate having a pair of main surfaces opposed to each other; and a pair of electrodes formed on the main surfaces of the dielectric substrate; wherein a direction of emergence of a light beam propagating in the dielectric substrate is controlled according to an electric field applied from the electrodes to the dielectric substrate; the dielectric substrate being formed with a periodic structure of polarization inverted domains each having a given shape; the light beam being incident on domain walls of the polarization inverted domains; the electrode formed on at least one of the main surfaces being separated into at least first and second electrodes in a direction of propagation of the light beam.

摘要翻译： 这里公开了一种光开关，包括：具有彼此相对的一对主表面的电介质基板; 以及形成在电介质基板的主表面上的一对电极; 其中根据从电极施加到电介质基板的电场来控制在电介质基板中传播的光束的出射方向; 电介质基板形成为具有各自具有给定形状的偏振反转畴的周期性结构; 光束入射到偏振反转域的畴壁上; 形成在至少一个主表面上的电极在光束的传播方向上分成至少第一和第二电极。

公开(公告)号：US06829210B2

公开(公告)日：2004-12-07

申请号：US09947472

申请日：2001-09-07

申请人： Kenji Yamamoto ,  Kiyoshi Osato ,  Fumisada Maeda

发明人： Kenji Yamamoto ,  Kiyoshi Osato ,  Fumisada Maeda

IPC分类号： G11B7135

CPC分类号： G11B7/1378 ,  G11B7/1374

摘要： An optical head has achromatic lenses which a blue or blue-violet laser beam from a laser diode strikes, object lenses for condensing the laser beam passing through the achromatic lenses on an optical disc, lens holders and for holding the achromatic lenses and the object lenses so that their optical axes coincide, and actuators and for moving the lens holders in the focus direction and/or tracking direction of the optical disc. The lens holders are fixed to each other and the lenses are moved as one part by the actuators.

摘要翻译： 光头具有来自激光二极管的蓝色或蓝紫色激光束的消色差透镜，用于将穿过光盘上的消色差透镜的激光束聚焦的物镜，透镜保持器以及用于保持消色差透镜和物镜 使得它们的光轴重合，并且用于在光盘的聚焦方向和/或跟踪方向上移动透镜保持器。 透镜架彼此固定，透镜由致动器一部分移动。

公开(公告)号：US06560391B2

公开(公告)日：2003-05-06

申请号：US10098381

申请日：2002-03-18

申请人： Masahiro Yamada ,  Kiyoshi Osato

发明人： Masahiro Yamada ,  Kiyoshi Osato

IPC分类号： G11B7135

CPC分类号： G02F1/0508 ,  G02B2006/1204 ,  G02F1/2955 ,  G02F1/31 ,  G02F2001/311 ,  G02F2201/16 ,  G02F2202/07

摘要： Disclosed herein is an optical switch including: a dielectric substrate having a pair of main surfaces opposed to each other; and a pair of electrodes formed on the main surfaces of the dielectric substrate; wherein a direction of emergence of a light beam propagating in the dielectric substrate is controlled according to an electric field applied from the electrodes to the dielectric substrate; the dielectric substrate being formed with a periodic structure of polarization inverted domains each having a given shape; the light beam being incident on domain walls of the polarization inverted domains; the electrode formed on at least one of the main surfaces being separated into at least first and second electrodes in a direction of propagation of the light beam.

公开(公告)号：US07706240B2

公开(公告)日：2010-04-27

申请号：US10543140

申请日：2004-01-30

申请人： Toshiro Kinoshita ,  Akihiko Kobayashi ,  Noboru Sasaki ,  Makoto Arisawa ,  Hiroshi Iwase ,  Mamoru Sekiguchi ,  Hiroshi Ogawa ,  Yoshimori Yamasaki ,  Kiyoshi Osato ,  Masanobu Yamamoto ,  Toshiyuki Kashiwagi

发明人： Toshiro Kinoshita ,  Akihiko Kobayashi ,  Noboru Sasaki ,  Makoto Arisawa ,  Hiroshi Iwase ,  Mamoru Sekiguchi ,  Hiroshi Ogawa ,  Yoshimori Yamasaki ,  Kiyoshi Osato ,  Masanobu Yamamoto ,  Toshiyuki Kashiwagi

IPC分类号： G11B7/24

CPC分类号： G11B7/2539 ,  G11B7/242 ,  G11B7/243 ,  G11B7/245 ,  G11B7/256 ,  G11B7/257 ,  G11B7/26 ,  G11B7/265 ,  G11B23/40

摘要： An optical disk (10) of the present invention has a substrate (11) included a resin-impregnated paper, in which resin is impregnated into paper, or resin-coated paper, in which the paper surface is coated with a resin, and a recording layer (13) formed on at least one side of the substrate (11). This type of optical disk (10) has performance equal to that of conventional optical disks and has a minimal effect on the environment during disposal. In addition, a manufacturing method of an optical disk of the present invention has a recording layer sheet fabrication step in which a recording layer sheet is fabricated by forming tracks on a recording layer base material, and a recording layer sheet lamination step in which a recording layer (13) included the recording layer sheet is provided on a substrate (11) included resin-impregnated paper or resin-coated paper by laminating the recording layer sheet with the resin-impregnated paper in which a resin is impregnated into paper or the resin-coated paper in which the surface of the paper is coated with a resin. This type of manufacturing method of an optical disk allows optical disk (10) to be produced inexpensively.

摘要翻译： 本发明的光盘（10）具有：基材（11），其中树脂被浸渍到纸中的树脂浸渍纸或其中纸表面涂覆有树脂的树脂涂布纸，以及 记录层（13）形成在所述基板（11）的至少一侧上。 这种类型的光盘（10）具有与常规光盘相同的性能，并且在处理期间对环境的影响最小。 此外，本发明的光盘的制造方法具有记录层片材制造步骤，其中通过在记录层基材上形成轨迹来制造记录层片材，以及记录层片材层压步骤，其中记录 包括记录层片的层（13）通过将记录层片材与浸渍有树脂的树脂浸渍纸层压在纸或树脂上而设置在包含树脂浸渍纸或树脂涂布纸的基材（11）上 涂布纸，其中纸的表面涂覆有树脂。 这种光盘的制造方法允许廉价地生产光盘（10）。